About: http://webisa.webdatacommons.org/402368319

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	An unusual but quite satisfactory means of producing in glass a colour varying from a light henna to a deep ruby is by adding to the batch uranium oxide, together with an oxidizing agent such as sodium nitrate.
http://www.w3.org/ns/prov#wasQuotedFrom	ufl.edu